diff --git a/scripts/launch_guest.sh b/scripts/launch_guest.sh
index f52f3f299..ccbd15946 100755
--- a/scripts/launch_guest.sh
+++ b/scripts/launch_guest.sh
@@ -67,12 +67,21 @@ QEMU_MINOR=${QEMU_MINOR%%.$QEMU_BUILD}
 
 # The QEMU machine and memory command line changed after QEMU 8.2.0 from
 # the coconut-svsm git repository.
-if (( (QEMU_MAJOR > 8) || ((QEMU_MAJOR == 8) && (QEMU_MINOR >= 2)) )); then
+if (( QEMU_MAJOR >= 9 )); then
+  MACHINE=q35,confidential-guest-support=sev0,memory-backend=mem0,igvm-cfg=igvm0
+  MEMORY=memory-backend-memfd,size=8G,id=mem0,share=true,prealloc=false,reserve=false
+  SNP_GUEST="sev-snp-guest,id=sev0,cbitpos=$C_BIT_POS,reduced-phys-bits=1"
+  IGVM_OBJ="-object igvm-cfg,id=igvm0,file=$IGVM"
+elif (( (QEMU_MAJOR > 8) || ((QEMU_MAJOR == 8) && (QEMU_MINOR >= 2)) )); then
   MACHINE=q35,confidential-guest-support=sev0,memory-backend=mem0
   MEMORY=memory-backend-memfd,size=8G,id=mem0,share=true,prealloc=false,reserve=false
+  SNP_GUEST="sev-snp-guest,id=sev0,cbitpos=$C_BIT_POS,reduced-phys-bits=1,init-flags=5,igvm-file=$IGVM"
+  IGVM_OBJ=""
 else
   MACHINE=q35,confidential-guest-support=sev0,memory-backend=mem0,kvm-type=protected
   MEMORY=memory-backend-memfd-private,size=8G,id=mem0,share=true
+  SNP_GUEST="sev-snp-guest,id=sev0,cbitpos=$C_BIT_POS,reduced-phys-bits=1,init-flags=5,igvm-file=$IGVM"
+  IGVM_OBJ=""
 fi
 
 # Setup a disk if an image has been specified
@@ -112,7 +121,8 @@ $SUDO_CMD \
     -cpu EPYC-v4 \
     -machine $MACHINE \
     -object $MEMORY \
-    -object sev-snp-guest,id=sev0,cbitpos=$C_BIT_POS,reduced-phys-bits=1,init-flags=5,igvm-file=$IGVM \
+    $IGVM_OBJ \
+    -object $SNP_GUEST \
     -smp 4 \
     -no-reboot \
     -netdev user,id=vmnic -device e1000,netdev=vmnic,romfile= \